Respiratory Therapy - Flow Waveform Analysis
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- Опубликовано: 13 июн 2022
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This video breaks down the flow waveform during mechanical ventilation. Hope you learn something!
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That air-trapping segment is also known as Auto-PEEP. Important to recognize in the controlled ventilation patient with known OLD, as it can lead to barotrauma and hemodynamic compromise. Adjust PEEP up and increase I Time until return to baseline - just like Joe said.
I never understood waveforms. Your explanation is very good. You are giving us explanation for free mainwhile we paid a lot of money and spent times after times in school and they never teach us. Thank you so much.
Thank you, Madina! Doesn't seem fair, but the truth is you needed the confusion from the "paid for classroom" for me to bring clarity to. GO BE GREAT!
This has helped me so much! Thank you!
You are a lifesaver. Thank you
Good job. 👍🏽
You are the best in the world thanks a lot
I love that
You re awesome 👌, please put out more content
This guys explain well better than my prof.
Hi Joe! These are great and I am excited for the next ones. This is the first time that I got all the questions right before you broke them down!
Awesome, Gie! Thanks for watching and commenting. Breakdown of the volume waveform coming this week!
You are very good in explaining
Thank you Madina!! I appreciate you watching and commenting!
U make difficult things simple ...u r genius....
Thank you so much 😀
Thanks a lot sir
Respiratory therapist from Pakistan
Hello to Pakistan from America. Thank you for watching and kindly commenting.
another very helpful video. Thanks. Have you ever thought about doing a video with how to read the chest XR and chest CT? that would be extremely helpful especially now you have that screen you can show lots of examples of xray and CT images. Thanks again. looking for that video from you
I love that idea. Stay tuned and thanks for watching!!
Quick question, do you have audio versions of your videos on spotify? I'd love to listen to em on my way to and from work. Been following you since 2018.. your videos helped me so much during my clinicals in my student days 🙏
Yes! Please hop on Spotify asap! Plsss
Hey there Coach, thank you so much for making this video.☺️ I am struggling with rapid sequence Intubation, particularly assisting the doctor. I freeze and do not know what to do. Can you please make a video with step by step instructions from the time we walk into a code to placing the patient on the ventilator? 🙏
Hey Jay! I'll see what I can do to get that out for you. Stay tuned. Hope all is well, Jay!
@@RespiratoryCoach thank you very much! I am doing good.
Hi great coach , please talk about platinet ventilator asynchrony , and how to solve it , I will be appreciated
In advance
Hello Coach, first and foremost I absolutely love your videos. I have a question that might have been answered but I didn't see it but how do you decrease inspiratory time on PS?
Insp time during pressure supported breaths is controlled by the patient. The only way to manipulate this is to adjust the expiratory sensitivity.
General question: Is flow continually going? And is it always at a constant speed/velocity? Or does it speed up/slow down according to volume delivered/pressure target reached?
@9:30 How does decreasing RR increases E time ?
If insp ratio is 1:2 on a resp rate of 20 , then it should be 2 sec for insp and 4 sec for expiration... On RR of 10
I think you answered your question, because you are exactly right. A 1:2 on a rate of 10 would be 2 sec inspiration and 4 sec expiration. At a rate of 20, a 1:2 would be a 1 sec insp time with a 2 sec expiratory time. Decreasing the rate increases E time by increasing total cycle time. Rate of 20 has 3 sec TCT, while a rate of 10 has 6 sec TCT. Does that make sense? Thanks for watching and commenting with your question.
Hi teacher..
A quick clarification please.. by air trapping do you mean autopeep generation??? And if that is the case how come increasing PEEP will help trouble shooting... Esp if I have a kid with asthma on vent where zero peep is the strategy I believe... Love from Pakistan for teaching us so good
Hi Faisal! Yes, air trapping leads to auto-peep. Increasing PEEP basically stents open distal airways, much like purse lip breathing, and allows for greater alveoli emptying. Thanks for watching and commenting.
At the beginning of the video you said square is volume control and that decelerating is volume control unless accompanied by a square then its pressure but at the end of the video you said square and decorating are both pressure????
Same
You said that peep can be used in asthma patients, but there are many sources that tell us not to use peep because of the airways in asthma patients that are steadily narrowed, so what is correct in your opinion now
Hey joe,
What if the air Gap in inspiratory wave, i mean the inspiratory wave doesn’t reach to base line and start the expiratory?
Sometimes there are like couplet wave in inspiratiry flow curve. What does it mean? Thanks four your help.
Hello Amr! If the inspiratory flow pattern doesn't return to baseline, specifically in pressure control, then it indicates that a full alveolar tidal volume wasn't delivered. I would have to see the couplet pattern you're referring to. Feel free to send me an email to respiratorycoach@gmail.com. I'll take a look at it. Thanks for watching and asking your question.
I’m confused because if I decrease my tidal volume won’t my i time still stay the same unless I change it?
I got lost a little coach. I thought the volume control is square waveform like you were saying in the beginning. How come when the first practice questions is square, and its a pressure control Can you clarify for me.
@9:26 will you please help me how you got 5 seconds e-time? It says 6 seconds on the board. Please help. Thank you! :)
Does the square shape always refer to the PCV ?, because at the beginning of the passage you said that it refers to VCV?Or is there an exception? I used to think that the square shape indicates CMV whether it is PCV or is VCV. Please answer my question, my exam is in two days and I messed up? .
I think it’s just a by mistake that he tells the square waveform a VC if you recognise at the end that he said again the square waveform are always PC and you can search in the internet about this information 👍
I'm sorry, I'm a bit confused, in the first video, I thought square waveform was VC, and if it descends w/a a square is PC but in this video the square is PC
Hae,does square waveform represent VC or PC?
PC
Sir you said square wave form always in volume control but when you solve mcqs you said square flow waveform are present in Pressure control
Plzzz guide me dear sir@respiratory coach
RN from Australia here.
Your problem is the difference between pressure waveform and flow waveforms.
square waveform (flow) = volume control
Decelerating waveform (flow) = pressure control (always) or volume control (sometimes)
In the MCQs the Square waveform isn’t a flow waveform but a pressure waveform
Square waveform (pressure) = pressure control
Please correct me if I’m wrong
@@MrMatt15 thanks a lot i got it
so wait. he said pressure control was always decelerating and then when the squares came up he said PC is always square. i thought they were always decelerating. IM LOST.
Great question! In regards to PC, the flow is always decelerating. Hence, the flow waveform will appear decelerating, but the pressure is set, so the pressure waveform is square. Pressure waveform vs flow waveform. Does that make sense?
@@RespiratoryCoach yes i think i understand. it is two different things. Thank u